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Design, implement, debug, and verify stable App Intents and WidgetKit integrations, including AppIntent, AppEntity, AppEnum, entity queries, AppShortcutsProvider, dependency injection, shared extension data, widget timelines, relevance, controls, Live Activity selection, deep links, handoff, conf...

Use when one Swift/SwiftUI product intentionally targets two or more of iOS, iPadOS, Mac Catalyst, macOS, watchOS, tvOS, or visionOS and needs shared-domain design, adaptive UI, capability boundaries, navigation, input, scenes, storage, or conditional compilation. Do not use for a single-platform...

Use when iOS or iPadOS accessibility design, implementation, review, or testing involves VoiceOver, Voice Control, Switch Control, Full Keyboard Access, Dynamic Type, contrast, motion, focus, media alternatives, or Assistive Access. Do not use for generic visual styling or platform-neutral UI wor...

Design, implement, debug, and review accessible Apple-platform animation and graphics with SwiftUI animation, Canvas, TimelineView, matched geometry, phase/keyframe animators, Core Animation, and Lottie. Use for motion design, custom drawing, transitions, particles, animated symbols, UIKit/AppKit...

Use when designing, adapting, implementing, or auditing an iOS app for iPhone Duo, including resizing, folding, vertical bars, reserved regions, state continuity, multiple scenes, camera behavior, and accessibility. Produce evidence-based readiness findings with SDK gates and fallbacks. Do not us...

Diagnose, explain, and fix Swift and Apple-platform memory leaks, unexpected object retention, deinit failures, heap growth, retain cycles, runaway caches, task and AsyncSequence lifetimes, timer/delegate/closure ownership, jetsam, and ARC issues using Xcode Memory Graph and Instruments Allocatio...

Implement, migrate, debug, and review on-device transcription with Apple SpeechAnalyzer, SpeechTranscriber, DictationTranscriber, AssetInventory, AnalyzerInput, live microphone audio, and audio-file analysis on iOS 26, macOS 26, visionOS 26, and tvOS 26 where supported. Use for SpeechAnalyzer set...

Plan, implement, debug, and verify migrations from callback-, delegate-, Dispatch-, or permissive-concurrency Swift code to Swift 6 strict concurrency, including target-specific build settings, approachable concurrency, default actor isolation, @concurrent work, actors, Sendable boundaries, cance...

Use when designing new or intentionally modernized SwiftUI app architecture targeting Swift 6 with strict concurrency and iOS/iPadOS 18 or macOS 15, especially Observation ownership, dependency boundaries, SwiftData, structured concurrency, navigation state, and test seams. Do not use for arbitra...

Use when investigating measured Swift or Apple-platform regressions in CPU, memory, launch, scrolling, animation hitches, image processing, energy, networking, or concurrency, or when designing performance tests and Instruments experiments. Do not use for speculative micro-optimization, ordinary ...

Design, write, migrate, and review Swift unit and integration tests using Swift Testing by default, with XCTest retained for UI automation, performance metrics, Objective-C interoperability, and legacy suites. Use for @Test, #expect, #require, parameterized tests, async tests, dependency injectio...

Design, implement, diagnose, and test production schema migrations for SwiftData and Core Data, including VersionedSchema snapshots, SchemaMigrationPlan stages, lightweight and custom Core Data mappings, gradual adoption, CloudKit constraints, and forward-recovery planning. Use when a persistent ...

Use when work involves SwiftUI view composition, state and Observation ownership, navigation, adaptive layout, toolbars, forms, SF Symbols, accessibility, previews, or SwiftUI-specific performance. Do not use for UIKit/AppKit-only work, general Swift language questions, or architecture and perfor...